00630cam a2200193 4500 1235211947 TxAuBib 20240419120000.0 240418s2024||||||||||||||||||||||||eng|u 73420 Project Gutenberg PGUSA eng TxAuBib Clements, Frederic E, 1874-1945, (Frederic Edward.) Research methods in ecology [Gutenberg] / Frederic E. Clements. Project Gutenberg, 2024. Project Gutenberg ; 73420 Public domain in the USA. Text. Project Gutenberg ; 73420. http://www.gutenberg.org/ebooks/73420